Granted Patent
Utility
US 6,445,799 · App. 08/832,508
Noise cancellation earpiece
Inventors:
Jon C. Taenzer, Steven H. Puthuff, Vincent Pluvinage
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Apr 3, 1997
Inventors
Jon C. Taenzer
Steven H. Puthuff
Vincent Pluvinage
Assignee (at issue)
GN ReSound North America Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.